how to make a capped nut...(acorn style)

Discussion in 'Motorized Bicycle Welding, Fabrication and Paintin' started by halfevil333, Apr 3, 2012.

  1. halfevil333

    halfevil333 New Member

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    here is a quick and easy way to make a capped nut flawlessly every time...

    step one: dab finger in grease
    step two: apply grease to bolt, last couple of threads and a conservative dollop on the end.
    step three: weld in an rainbow pattern, building a "bridge" over the gap. watch the metal and you can kinda build it up like spray foam, or silly string...
    LET IT COOL SLOWLY, THEN SHOCK IT WITH COOL WATER.
     

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  2. halfevil333

    halfevil333 New Member

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    ...the grease keeps threads from locking, and also helps create the nice dome without welding EVERYTHING together...
     
  3. 16v4nrbrgr

    16v4nrbrgr New Member

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    Why wouldn't you just buy acorn nuts at the hardware store?
     
  4. halfevil333

    halfevil333 New Member

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    Because, the closest store to the garage is still about 30min. Away....
    Because, I'm cheap!
    Because these are for the inside of the tank where cosmetics don't matter...
    ...did I mention I'm cheap?
     
  5. 2door

    2door Moderator
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    Bondo and silver paint? :)

    Tom
     
  6. halfevil333

    halfevil333 New Member

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    Yeah, but these are BULLET PROOF! ...and with a lil practice and possibly a dremel, they can look quite nice.
    I used these for mounting hardware, inside the new tank...also leak-proof, and not affected by solvents..
     
  7. landuse

    landuse New Member

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    OK, I am totally new to this, but what does the grease do if it is hidden under weld inside the nut. Maybe I am not understanding it properly
     
  8. halfevil333

    halfevil333 New Member

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    Keeps a the weld from sticking to the bolt, or from threads locking when nut gets red hot.
    ...and I don't actually know this, but I believe the gasses put off by the grease help dome the weld.
     
  9. landuse

    landuse New Member

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    OK. I thought maybe the grease was an integral part of the acorn nut itself, and I wasn't sure what it did.

    Makes sense now. Thanks
     
  10. 2door

    2door Moderator
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    I was just being facetious about the bondo. But, have you tried using stainless rod and a stainless nut? A few seconds on a bench buffer and your homemade acorns will look great. They'll Never rust and because the fastener is not a critical structural item, stainless will work well.

    Tom
     
  11. halfevil333

    halfevil333 New Member

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    I've used stainless before, was even easier..
    Simply run the threads of the bolt about 1/4"
    Beyond the nut, flux it, heat n silver solder...
    Dremel smooth n round, then buff, and they is SHINY!!!!
     

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